Book Image

Applied Network Security

By : Arthur Salmon, Michael McLafferty, Warun Levesque
Book Image

Applied Network Security

By: Arthur Salmon, Michael McLafferty, Warun Levesque

Overview of this book

Computer networks are increasing at an exponential rate and the most challenging factor organisations are currently facing is network security. Breaching a network is not considered an ingenious effort anymore, so it is very important to gain expertise in securing your network. The book begins by showing you how to identify malicious network behaviour and improve your wireless security. We will teach you what network sniffing is, the various tools associated with it, and how to scan for vulnerable wireless networks. Then we’ll show you how attackers hide the payloads and bypass the victim’s antivirus. Furthermore, we’ll teach you how to spoof IP / MAC address and perform an SQL injection attack and prevent it on your website. We will create an evil twin and demonstrate how to intercept network traffic. Later, you will get familiar with Shodan and Intrusion Detection and will explore the features and tools associated with it. Toward the end, we cover tools such as Yardstick, Ubertooth, Wifi Pineapple, and Alfa used for wireless penetration testing and auditing. This book will show the tools and platform to ethically hack your own network whether it is for your business or for your personal home Wi-Fi.
Table of Contents (18 chapters)

The history of Wi-Fi - the WLAN standard

802.11 originally started around 1985 when the US FCC released the license for the use of the ISM band. This had a great impact on the development of industrial, scientific, and medical radio bands technology using radio frequency and developing other applications apart from communication purposes and systems. With the first 802.11 being capable of processing 2 Mb at maximum bandwidth, many applications were too slow for productivity.

Fortunately, the IEEE were finally able to establish a new standard marking the 802.11a and 802.11b making wireless communication up to par with the Ethernet standard at the very least. When routers and other devices were developed following the 802.11b standard, radio signaling frequency was still unregulated. What this meant was that anything that operated in the 2.4 GHz frequency, such as a microwave or wireless telephone, could cause interference...